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Investigating the relationship between energy expenditure, walking speed and angle of turning in humans

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  • M A McNarry
  • R P Wilson
  • M D Holton
  • I W Griffiths
  • K A Mackintosh

Abstract

Recent studies have suggested that changing direction is associated with significant additional energy expenditure. A failure to account for this additional energy expenditure of turning has significant implications in the design and interpretation of health interventions. The purpose of this study was therefore to investigate the influence of walking speed and angle, and their interaction, on energy expenditure in 20 healthy adults (7 female; 28±7 yrs). On two separate days, participants completed a turning protocol at one of 16 speed- (2.5, 3.5, 4.5, 5.5 km∙h-1) and angle (0, 45, 90, 180°) combinations, involving three minute bouts of walking, interspersed by three minutes seated rest. Each condition involved 5 m of straight walking before turning through the pre-determined angle with the speed dictated by a digital, auditory metronome. Tri-axial accelerometry and magnetometry were measured at 60 Hz, in addition to gas exchange on a breath-by-breath basis. Mixed models revealed a significant main effect for speed (F = 121.609, P

Suggested Citation

  • M A McNarry & R P Wilson & M D Holton & I W Griffiths & K A Mackintosh, 2017. "Investigating the relationship between energy expenditure, walking speed and angle of turning in humans," PLOS ONE, Public Library of Science, vol. 12(8), pages 1-12, August.
    • Handle: RePEc:plo:pone00:0182333
    DOI: 10.1371/journal.pone.0182333
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    References listed on IDEAS

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    1. Gitanjali M Singh & Goodarz Danaei & Farshad Farzadfar & Gretchen A Stevens & Mark Woodward & David Wormser & Stephen Kaptoge & Gary Whitlock & Qing Qiao & Sarah Lewington & Emanuele Di Angelantonio &, 2013. "The Age-Specific Quantitative Effects of Metabolic Risk Factors on Cardiovascular Diseases and Diabetes: A Pooled Analysis," PLOS ONE, Public Library of Science, vol. 8(7), pages 1-10, July.
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